I've tried full gut. I get more spin with the gut/Biphase for some reason. I did buy a bunch of soft Co's (Sidewinder, Black widow, and a few others) but honestly, I'm afraid to try em

As far as the racquet, I know that the yonex + the gut/biphase is working. I just hit with a pro for 90 minutes w/ solid baseline rallies the whole time. Arm feels good.. in fact it feels better than my shoulder. I'm just searching to see if there is something better